﻿<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>15 JSON</title>
</head>

<body>
    <script type="text/javascript">
        var json = {
            "name": "mjj",
            "age": "29",
            "width": "500",
            "opacity": "100",
        }
        for (var attr in json) {
            console.log(attr, json[attr]);
        }
    </script>
</body>

</html>